Grass → insect → frog → snake → eagle
What will happen initially to the above food chain if the snakes are killed in large numbers?
(a) Population of frogs will decrease.
(b) Population of both frogs and eagle will decrease.
(c) Population of frogs will increase and eagles will decrease.
(d) It will make no difference to the number of any of the organisms.

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Solution

(c) Population of frogs will increase and eagles will decrease.

The population of frogs will increase as there would be no snakes to feed on them and the population of eagles will decrease as there would be no snakes for them to eat.

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